1. Telephone investigation: our after-sales team will phone the user every month during the warranty period to follow up the working condition of the products, and to discover and solve problems, if necessary.

2. Free guarantee repair (including labor and material); free repair service during the quality warranty period and reasonable charge for spare parts and maintaining service after the quality warranty period. We will never exempt our responsibilities on product owned defects.

4. Spare parts: necessary spare parts are provided together with products to customers.

5. Free technical training: integrative and normative technology training is available for free to customers by our technical personnel to ensure they are skilled in regular operations of hardware and software of products and they are able to estimate and solve small problems.